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Mortality Rate

Mortality rate is a statistical measure that represents the frequency or probability of death within a specific population during a defined period of time. In insurance, it is a key actuarial factor used to determine life insurance premiums, reserves, and the expected financial risk to the insurer. Mortality rates are derived from large-scale data that reflect age, gender, health, lifestyle, and other risk factors, allowing insurers to predict how many people in a given group are likely to die each year.

How It Works

Mortality rates are built from large-scale data that reflects age, gender, health, lifestyle, and other risk factors, and they are typically expressed as the number of deaths per 1,000 individuals per year. Younger, healthier populations show lower mortality rates, while older populations or those with health risks show higher rates, and these figures are continuously updated using national statistics and insurer data. In Canada, these rates feed directly into actuarial and tax calculations. A universal life policy splits premiums into components such as mortality charges and cash values, and under the Income Tax Regulations, accumulating-fund and reserve calculations for a life insurance policy can require mortality rates to be adjusted, for example to reflect the assumption that a death occurred at the time and in the manner it did. When two or more lives are jointly insured under a coverage, Canadian tax rules use an equivalent single age, determined in accordance with accepted actuarial principles, that reasonably approximates the mortality rates of those lives. The regulations also require the mortality data in the Canadian Institute of Actuaries' 1969-75 mortality tables to be used when computing the net cost of pure insurance of an interest in a life insurance policy, with the company's actuaries extrapolating where the insured's age exceeds the tables' issue-age limit.

Example:

When a Canadian life insurer prices a group life benefit, it relies on mortality rates rather than trying to predict any single person's outcome. If actuarial tables show that, statistically, a small number out of every 1,000 people of a given age are expected to die within a year, the insurer applies that probability, layered with age, health, and lifestyle factors, to set the cost of coverage for the group. The same mortality assumptions also feed the Canada Revenue Agency reserve and net-cost-of-pure-insurance calculations on the policy.

What to Watch For:

A mortality rate is a population average and a measure of probability, not a prediction of any one person's outcome, since rates depend on broad factors such as age, gender, health, and lifestyle. These assumptions can also shift with how coverage is sold. Removing traditional underwriting requirements in Canadian accelerated underwriting can deteriorate mortality by attracting applicants who might not have applied or who would have been declined, an effect insurers estimate by measuring mortality slippage.

Related Terms

Misstatement of Age

Misstatement of age occurs when the age of the insured person is recorded incorrectly on an insurance application or policy. Because age is a key factor in determining eligibility, premiums, and benefit amounts, any error - whether accidental or intentional - can affect the terms of coverage. The misstatement may be discovered during underwriting, at the time of a claim, or during a policy review.

Term Life Insurance

Term life insurance provides financial protection for a specific period of time, known as the term, such as 10, 20, or 30 years. If the insured person dies during that period, the insurer pays a tax-free lump-sum death benefit to the designated beneficiary. This type of insurance is designed to provide affordable coverage for temporary needs, such as replacing income, paying off a mortgage, or supporting dependents until financial independence is achieved.

Life Insurance

Life insurance is a financial protection product that provides a tax-free lump-sum payment, known as a death benefit, to designated beneficiaries when the insured person dies. It is designed to replace income, pay debts, cover final expenses, or provide financial stability for dependents and loved ones. Life insurance helps ensure that family members can maintain their quality of life and meet ongoing financial obligations even after the loss of the primary earner.

Accidental Death and Dismemberment Insurance (AD&D)

Accidental Death and Dismemberment Insurance (AD&D) provides a tax-free lump-sum payment if you die or suffer a severe injury as the direct result of an accident. It is designed to offer financial protection for you and your family in the event of an unexpected, accidental injury or loss that causes death, dismemberment, or permanent disability.

Beneficiary

A beneficiary is the person or entity designated to receive the proceeds or benefits from an insurance policy upon the policyholder’s death or when a covered event occurs. In life insurance, the beneficiary receives the death benefit as a tax-free lump sum. In accidental death and dismemberment (AD&D) insurance, the beneficiary receives payment if the insured person dies as the result of an accident. Beneficiaries can also be designated in certain health or travel plans that include accidental death benefits.

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